43845489 has 8 divisors (see below), whose sum is σ = 64956320. Its totient is φ = 29230308.

The previous prime is 43845467. The next prime is 43845493. The reversal of 43845489 is 98454834.

It is a happy number.

43845489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43845489 - 2¹¹ = 43843441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43845409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 811927 + ... + 811980.

It is an arithmetic number, because the mean of its divisors is an integer number (8119540).

Almost surely, 2^43845489 is an apocalyptic number.

It is an amenable number.

43845489 is a deficient number, since it is larger than the sum of its proper divisors (21110831).

43845489 is a wasteful number, since it uses less digits than its factorization.

43845489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623916 (or 1623910 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 43845489 is about 6621.5926331963. The cubic root of 43845489 is about 352.6211082277.

The spelling of 43845489 in words is "forty-three million, eight hundred forty-five thousand, four hundred eighty-nine".